Sonochemical Treatment of Fossil Fuels

Sadeghi, Kazem M.; Lin, Jiunn-Ren; Yen, Teh Fu

doi:10.1080/00908319408909088

Cited by 26 publications

(25 citation statements)

References 12 publications

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“…This frequency was selected in accordance with previous studies and resonant frequency. [15][16][17][18][19][20][21][22] Standard deviation of the mean is less or equal to 0.1 C. DT includes initial temperature. Te shows that the rising temperature with ultrasound irradiation is higher at 0 mm (ch1, ch4).…”

Section: Experimental Methodsmentioning

confidence: 99%

Investigation of Thermal Conductivity and Heat Characteristics of Oil Sands Using Ultrasound Irradiation for Shortening the Preheating Time

Kamagata¹,

Kawamura²,

Okawa³

et al. 2012

Jpn. J. Appl. Phys.

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Oil sands are attractive as an energy resource. Bitumen, which is found in oil sands, has high viscosity, so that it does not flow. Most oil sands are underground and are developed with a method called steam-assisted gravity drainage (SAGD). Hot steam is injected underground to fluidize bitumen and promote its recovery. However, the preheating time is too long. One way of reducing running costs is by shortening the preheating time. Previous studies have found that bitumen can be extracted from oil sands efficiently by applying ultrasonic irradiation, but SAGD was not applied directly in these cases. Thus, the purpose of this study is to apply ultrasonic irradiation to SAGD, thereby shortening the preheating time of oil sands. As a model experiment for SAGD, heat transfer experiments in a sand layer made with Toyoura sand and silicone oil were conducted and the thermal effect with ultrasound was investigated. #

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Section: Experimental Methodsmentioning

confidence: 99%

Investigation of Thermal Conductivity and Heat Characteristics of Oil Sands Using Ultrasound Irradiation for Shortening the Preheating Time

Kamagata¹,

Kawamura²,

Okawa³

et al. 2012

Jpn. J. Appl. Phys.

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“…He observed dramatic improvements in the permeability, which he attributed to ultrasonic cavitation and heating. Some, researchers have toyed with the idea of utilizing ultrasound to improve the upgrading of heavy oil and tar sands in-situ or in pipes [74][75][76][77][78][79][80].…”

Section: Spe-106521-stu (Student 5)mentioning

confidence: 99%

The Influence of Ultrasonic Energy on Capillary Fluid Displacement

Hamida

2006

SPE Annual Technical Conference and Exhibition

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In recent years, field tests and laboratory investigations have demonstrated that high intensity acoustic stimulation may enhance oil recovery in rocks. This technology is not only technologically feasible, but also serves as an economical, environmentally friendly alternative to currently accepted EOR methods. It requires low capital expenditure, and yields almost immediate improvement without any additional EOR agents. Despite a vast body of empirical and theoretical support, this technology lacks sufficient understanding to make meaningful, consistent engineering predictions. This is in part due to the complex nature of the physical processes involved, as well as due to a shortage of fundamental/experimental research. Much of what we believe is happening within ultrasonically stimulated porous media is speculative and theoretical.This paper aims at identifying and analyzing the influence of high-frequency, high-intensity ultrasonic radiation on the miscible and immiscible displacement of oil in capillary media. We first investigate the effect of ultrasound on flow through a capillary via the pendant drop method. Water was injected into a capillary which is submersed into various processed mineral oils and kerosene. The average drop rate per minute was measured at several ultrasonic intensities, and we determined that there exists a peak drop rate at a characteristic intensity, which strongly depends on oil viscosity and the interfacial tension between water and the oil. The second set of experiments comprises of Hele-Shaw type experiments designed to study instabilities at liquid-liquid interface when ultrasound is applied. Fractal analysis techniques were used to quantify the degree of fingering and branching, allowing a rough assessment of the degree of perturbation generated at the interface. Miscible Hele-Shaw experiments are also presented to illustrate the effect of viscous forces alone. We found that ultrasound acts to stabilize the interfacial front, and that such effect is most pronounced at low viscosity ratios. The third series of experiments focuses on the effect of ultrasound on spontaneous (capillary) imbibition of an aqueous phase into oil-saturated Berea sandstone and Indiana limestone plugs. Both counter-current and co-current geometries were tested. Due to the intrinsically unforced, gentle nature of the process, and their strong dependence on wettability, interfacial tension, viscosity and density, such experiments provide valuable insight into some of the governing mechanisms behind ultrasonic stimulation.

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“…Therefore, ultrasound is of undoubted interest as a promising method of influence in the processes of the separation of heterogeneous mixtures. Earlier studies have suggested that the application of ultrasound could significantly increase the efficacy of surfactants in eluting PAHs [10,11], DDT and PCBs [12], diesel fuel [13], and tar sand or oil products [14,15]. However, there have been no reports concerning the effects of ultrasonication time on the remediation of aging soils contaminated with super heavy oil and its biomarkers.…”

Section: Introductionmentioning

confidence: 96%

Impact of ultrasonication time on elution of super heavy oil and its biomarkers from aging soils using a Triton X-100 micellar solution

Zhou

2010

Journal of Hazardous Materials

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Sonochemical Treatment of Fossil Fuels

Cited by 26 publications

References 12 publications

Investigation of Thermal Conductivity and Heat Characteristics of Oil Sands Using Ultrasound Irradiation for Shortening the Preheating Time

Investigation of Thermal Conductivity and Heat Characteristics of Oil Sands Using Ultrasound Irradiation for Shortening the Preheating Time

The Influence of Ultrasonic Energy on Capillary Fluid Displacement

Impact of ultrasonication time on elution of super heavy oil and its biomarkers from aging soils using a Triton X-100 micellar solution

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